Package for infusing material



Feb. 14, 1939. c. LUCKHAUPT PACKAGE FOR INFUSING MATERIAL Filed Aug. 17,1958.

' back into facial alignment with the remainder Fig. 8.

of the regenerated cellulose sheet;

Fig. 8 is a diagrammatic view illustrating one means for arranging thepuncturings over desired areas in the regenerated cellulose sheet andfor subsequently and simultaneously effecting the operation of rollingunder pressure the tabs or flaps into facial alignment with theregenerated cellulose sheet; and

Fig. 9 is a fragmentary view in section of a container having steepingwater therein and showing one of my improved packages in positiontherein.

Referring to the drawing and particularly Figs. 1 and 2, l0 designates apackage or sack made from regenerated cellulose and which may be in theform either transparent or translucent and whichpackage or sack isfilled with infusing material ll. Such material may be any desired, suchastea or coffee, and from which an infusion is to be made by steeping inpreferably hot water.

The package or sack III is made from regenerated cellulose in sheetform, such as the sheet illustrated in Fig. 3, and designated by thereference numeral l2. The sheet of material I2 is mechanically providedwith puncturings l8, preferably arranged in groups and in any desiredpattern and over designated areas of the sheet l2.

The puncturings, designated l3, are illustrated in Figs. 4 to 7,inclusive, and are preferably made. by a mechanical device such as isillustrated in The puncturings l3 may have any form desired, such as acurved form, illustrated in Figs. 3 and 4, to and including what may betermed practically substantially rectilinear slits. In making thepuncturings II, a cylinder l4, rotatably mounted on a shaft I5, isprovided on its surface with punch members l6 of the shape I! of thepuncturings desired to be made and which cooperates with an anvil llrotatably mounted on a shaft l8 parallel to the shaft IS. The cylinderI4 and anvil I! run at the same peripheral speed, being constrained todo so by the intermeshing gears l9, mounted respectively on the shaftsISand i1 and such gears, as well as the cylinder l4 and anvil H, are ofsubstantially the same diameter. The sheet H- of regenerated celluloseis passed through the space between the cylinder I4 and anvil IT in thedirection of the arrow shown in Fig. 8 and as a result, the tabs of thepuncturings l3 are forced outwardly from one side of thesheet l2 asshown in Figs. 5 and 6. The sheet of regenerated cellulose l2, moving inthe direction of the arrow shown in Fig. 8, brings the same intoengagement with the parallelly arranged calendar rolls 2| rotat-- ableeach in the direction of the arrow shown. and which forces the flaps 20back into the space from which they came and into substantial facialalignment with the faces of the regenera sheet l2. The sheet thereforehas the appearance, after passing through the calendar rolls 2|, asshown in Fig. 7, where the puncturings l3 can be faintly discerned.

The flaps 20 are so arranged on the sheet of regenerated cellulose l2and the sheet i2 is so manipulated during the making of the package orsack in, that the flaps or tabs20 will be forced to curl up and extendinto the interior of the bag or sack III. This is clearly illustrated inFig. 9, where the bag or sack ID with the infusing material I l therein,and being subjected to the action of the infusing water 22 held in thecontainer 23, curls up under the action of the infusing water, and isforced away from facial alignment with the sheet of material l2, intothe inside of the bag or sack It. The inward curling of the flaps ortabs 20 tends to prevent passage outward of the fine tea leaves into theinfusing liquid 22.

The bag or sack ill illustrated in Fig. 1 is made from the sheet I2 ofregenerated cellulose by cutting from such sheet the material betweenthe upper edge thereof and the lower edge and the two vertical linesdesignated by the reference numeral 24 in Fig. 3. This material with thegroups of punctures I2, arranged as shown, is folded on the line 25 soas to bring ,the upper and lower edges into substantial alignment witheach other, and a line of stitching started preferably at the point 28on the line 25 is brought parallel to one of the lines 24, thencesubstantially parallel to the upper edge of the sheet, and then parallelto the other line 24, terminating again at the line 25. The line ofstitching is designated by the reference numeral 21 in Figs. 1 and 2,and the sewing material at the termination of the line 21 is extendedinto a loop 28 and tied at its outer end to a designating tab 29.

Before the last portion of the line of stitching 21 is completed,'thebag or sack I is filled with the charge of infusing material H, as shownin Fig. 12, and the completion of the last portion of the line ofstitching 21 permanently closes such infusing material within the bag orsack ID.

The designating tab 29 is preferably made from a sheet of regeneratedcellulose and comprises a length of material substantially greater thanthe width of the bag l0, provided with parallel slits 30 to define acentral portion II and side portions 32. This tab 29 is slipped onto thebag or sack N by having a central portion 2| arranged on one side of thesack and the side portions 32 arranged on the other side. Such tab isalso useful in the utilization of the package as it forms a convenienthandle for putting the bag I ll into or taking the same out of theinfusing water 22.

Whereas I have described my invention by reference to specific formsthereof, it will be understood that many changes and modifications maybe made without departing from the spirit of the invention.

I claim: 1

1. An improved package for infusing material, said package being madefrom regenerated cellulose in sheet form provided with puncturings indesired group arrangement and size on designated areas of-the material,the tabs resulting from the stated puncturings being normally disposedinsubstantial facial alignment with the sheet, the punctured tabs beingamenable to the action of infusing liquid, whereby said tabs curl topermit access of infusing liquid to the contents of the package.

2. An improved package for infusing material made from a sheet ofregenerated c'ellulose material, the package being in sack form and thematerial thereof provided with puncturings arranged in any desiredgrouping and size in the sheet of material, the tabs resulting from thestated puncturings being normally disposed in substantial facialalignment with the sheet of material and biased to open the puncturingsby withdrawal of the tabs from the puncturings and into the interior ofthe package under action of infusing fluid. 3. An improved package forinfusing material made from a sheet of regenerated cellulose material insack form such material having greater tensile strength in one directionthan in the other, said sheet material being provided with puncturingsarranged in any desired group formation, the length of such puncturingslying along the linesof greatest tensile strength of the material,the-tabs resulting from the stated puncturings being normally disposedin substantial facial alignment with the sheet of material and said tabsnormally biased to curl or retreat from thesheet of the material uponexposure to in-' fusing liquid and to retreat into the interior of thepackage to thereby open the puncturings.

4. An improved package for infusing material made from 'a sheet ofregenerated cellulose material in sack form such material having greatertensile strength in one direction than in' the other, said sheetmaterial being provided with puncturings arranged in any desired groupformation, the length of such puncturings lying along the lines ofgreatest tensile strength of the materiairthe tabs resulting from thestated puncturings being normally disposed in substantial facialalignment with the sheet of material and said tabs normally biased tocurl or ,retreat from the sheet of the material upon exposure toinfusing liquid and to retreat into the interior of the package tothereby open the puncturings, and with the package closed by sewings offibrous material and with the ends of fibrous material v extendingbeyond the package and a tag attached to said ends.

CHRISTOPHER LUCKHAUPT.

